I bought Sean's SC kit for my Gen1, exhaust, headers, radiator kit, head bolts, and misc other items. First off, the quality on Sean's kit is top notch. Everything was there and fit as promised. I certainly got a lot of power out of the kit. Second, Sean's willingness to answer questions is great. Even nearly 2 years after I bought the kit, he was answering tuning questions for me and sending me pins to do some additional logging. I'd reccomend Roe anytime, and especially if you are a DIY person.